MANUAL PHYSIOLOGY PRACTICAL - Repository:The Medical ...

FM/UOJ
Change
in HR
CARMPTON’S INDEX FOR PHYSICAL FITNESS
Chang in systolic pressure
+ 10 + 08 +06 + 04 + 02 00 - 02 - 04 -06 - 08 - 10
0 -4 100 95 90 85 80 75 70 65 60 55 50
05 – 08 95 90 85 80 75 70 65 60 55 50 45
09 – 12 90 85 80 75 70 65 60 55 50 45 40
13 – 16 85 80 75 70 65 60 55 50 45 40 35
17 – 20 80 75 70 65 60 55 50 45 40 35 30
21 – 24 75 70 65 60 55 50 45 40 35 30 25
25 – 28 70 65 60 55 50 45 40 35 30 25 20
29 – 32 65 60 55 50 45 40 35 30 25 20 15
33 – 36 60 55 50 45 40 35 30 25 20 15 10
37 – 40 55 50 45 40 35 30 25 20 15 10 05
41 - 44 50 45 40 35 30 25 20 15 10 05 00
(Good health – 60 -100%; some disturbance – 50% and severe physical disability>
10%)
Valsalva Manoeuvre- Increased Intra-thoracic Pressure
This manoeuvre depends on the effects on intra thoracic pressure (and intra
abdominal pressure) changes on venous return and consequently of pulse rate and blood
pressure.
Note: Those who are known to have cardiovascular problems are requested not to do
the Valsalva manoeuvre.
Methods:
After obtaining steady resting readings of pulse rate and blood pressure
(systolic and diastolic) ask the subject to take a deep breath, and hold the breath for 30
seconds. Count the pulse every 10 seconds and the blood pressure half way through and
after beginning of breathing. This is a control manoeuvre.
Ask the subject to perform Valsalva manoeuvre and repeat the measurements in
the same manner. The subject takes a deep breath and closes the glottis; then the subject
increases the intra-thoracic pressure by forceful contraction of all chest and abdominal
muscles (straining) for 30 – 45 seconds. Carry out the measurements as before and
continue until the readings come back to resting values. Ask the subject to describe any
unusual sensation or feeling experienced during the manoeuvre.
Demonstration
The biopack system is used to demonstrate continuous changes in pulse rate in
both of the above experiments on one subject.
Circulation
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